Ludemann strainers provide industrial and commercial plants with long-term protection against the malfunctions that arise as a result of foreign matter being flushed into the system. This, in turn, results in an increase in the plants' longevity.Since the 1962 launch of our GL strainer made from grey cast iron, our range has undergone continual development. Today, our fittings, whether flange versions, socket versions or versions with welded ends, come in brass, gunmetal, spheroidal graphite iron, cast steel, and stainless steel.